期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 86, 期 8, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.86.084703
关键词
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资金
- MEXT-Supported Program for the Strategic Research Foundation at Private Universities Topological Science [S1511006]
- Keio Gijuku Academic Development Funds
- JSPS [JP17K18090, JP15H05855, JP17H06462]
- Ministry of Science & ICT (MSIT), Republic of Korea [IBS-R018-D1-2017-A00] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Grants-in-Aid for Scientific Research [17K18090] Funding Source: KAKEN
We apply conformal field theory analysis to the k-channel SU(N) Kondo system, and find a peculiar behavior in the cases N > k > 1, which we call Fermi/non-Fermi mixing: The low temperature scaling is described as the Fermi liquid, while the zero temperature infrared fixed point exhibits the non-Fermi liquid signature. We also show that the Wilson ratio is no longer universal for the cases N > k > 1. The deviation from the universal value of the Wilson ratio could be used as an experimental signal of the Fermi/non-Fermi mixing.
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